Dell PowerEdge R830 Owners Manual - Page 102

Power supply units

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Figure 37. Installing the heat sink 1. retention screw (4) 3. processor shield 2. heat sink 4. retention screw slot (4) Next steps 1. Follow the procedure listed in the After working inside your system section. 2. While booting, press F2 to enter System Setup and verify that the processor information matches the new system configuration. 3. Run the system diagnostics to verify that the new processor operates correctly. Related references Safety instructions on page 63 Related tasks Before working inside your system on page 64 Installing a processor on page 99 After working inside your system on page 64 Power supply units Your system supports two hot swappable 750 W or 1600 W AC power supply units (PSUs). If two PSUs are used, they must be of the same maximum output power. CAUTION: For AC PSUs, use only PSUs with the Extended Power Performance (EPP) label on the back. Mixing PSUs from previous generations of systems can result in a PSU mismatch condition or failure to turn on. NOTE: If a system with 1600 W PSUs operates from 100 V to 120 V, then the power rating per PSU is derated to 800 W. NOTE: When two identical PSUs are installed, power supply redundancy (1+1 - with redundancy or 2+0 - without redundancy) is configured in system BIOS. In redundant mode, power is supplied to the system equally from both PSUs when Hot Spare is disabled. When Hot Spare is enabled, one of the PSUs will be put into standby when system utilization is low to maximize efficiency. 102 Installing and removing system components

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Figure 37. Installing the heat sink
1.
retention screw (4)
2.
heat sink
3.
processor shield
4.
retention screw slot (4)
Next steps
1.
Follow the procedure listed in the After working inside your system section.
2.
While booting, press F2 to enter System Setup and verify that the processor information matches the new system
configuration.
3.
Run the system diagnostics to verify that the new processor operates correctly.
Related references
Safety instructions
on page 63
Related tasks
Before working inside your system
on page 64
Installing a processor
on page 99
After working inside your system
on page 64
Power supply units
Your system supports two hot swappable 750 W or 1600 W AC power supply units (PSUs). If two PSUs are used, they must be
of the same maximum output power.
CAUTION:
For AC PSUs, use only PSUs with the Extended Power Performance (EPP) label on the back. Mixing
PSUs from previous generations of systems can result in a PSU mismatch condition or failure to turn on.
NOTE:
If a system with 1600 W PSUs operates from 100 V to 120 V, then the power rating per PSU is derated to 800 W.
NOTE:
When two identical PSUs are installed, power supply redundancy (1+1 – with redundancy or 2+0 – without
redundancy) is configured in system BIOS. In redundant mode, power is supplied to the system equally from both PSUs
when Hot Spare is disabled. When Hot Spare is enabled, one of the PSUs will be put into standby when system utilization is
low to maximize efficiency.
102
Installing and removing system components